Would that other systems get the same favorable treatment that Elizar advocates for capitalism. How about looking at the virtues of Communisms from the inside, as Elizar would have it. Anybody feel motivated to do more than a superficial hack job? How about Socialism? Monarchy? Plutocracy?

Speaking as someone who has no problem with capitalism, I'd say that people's reaction to it have a lot more to do with the people who promote it. Sort of like most people who don't care much for Heinlein turn out to have an appreciation of his writing, but absolutely detest the fanboy adulators who surround his remains.